The conclusion was followed: 1 Density had significant effect on the growth on the plug seedling of cucumber.
主要结论如下：1、密度对黄瓜穴盘苗的生长有显著的影响。
In the automatic controlling system of a plug seedling sower, it is important to coordinate the action of the swinging pole and the displacement of the tray.
摆臂和穴盘双轴协调控制是穴盘播种器的自动控制系统的关键。
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